Ask question

Ask question

All categories

murzikaleks [220]

2 years ago

9

Simplify: (cos^2x-1)/cosx+1

1 answer:

gizmo_the_mogwai [7]2 years ago

5 0

The solution would be like this for this specific problem:

(cos^2x-1)/cosx+1

cos^2x-1= (cosx+1)(cosx-1)

cosx-1

<span>I am hoping that this answer has satisfied your query and it will be able to help you in your endeavor, and if you would like, feel free to ask another question.</span>

You might be interested in

Find the arc length of the semicircle. Either enter an exact answer in terms of π or use 3.14 and enter your answer as a decimal

cricket20 [7]

Answer:

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

Step-by-step explanation:

The complete question in the attached figure

we know that

The circumference of a semicircle is given by the formula

$C=\frac{1}{2}\pi D$

where

D is the diameter of the semicircle

we have

$D=10\ units$

substitute

$C=\frac{1}{2}\pi (10)$

$C=5 \pi\ units$ ----> exact value

Assume

$\pi =3.14$

$C=5(3.14)=15.7\ units$ ----> approximate value

therefore

The arc length of the semicircle is $5 \pi\ units$ or $15.7\ units$

6 0

2 years ago

Help fast plz are they similar or not

Arte-miy333 [17]

Not. They are not similar they are regular I think so

5 0

3 years ago

Read 2 more answers

Find the common ratio of the sequence -164, -82, -41, -20.5

Aleks [24]

Answer:

r = $\frac{1}{2}$

Step-by-step explanation:

The common ratio r of a geometric sequence is

r = $\frac{a_{2} }{a_{1} }$ = $\frac{a_{3} }{a_{2} }$ = $\frac{a_{4} }{a_{3} }$ = ......

r = $\frac{-82}{-164}$ = $\frac{-41}{-82}$ = $\frac{1}{2}$

5 0

2 years ago

What is the answer to 14n- 7= 49

finlep [7]

<span>14n- 7= 49
Add 7 to both sides
14n=56
Divide 14 on both sides
Final Answer: n=4</span>

8 0

3 years ago

Read 2 more answers

Find the area of the shaded polygons:

aleksandrvk [35]

Answer:

$\large\boxed{Area=9}$

Step-by-step explanation:

$\text{Use Pick's theorem.}$

$\text{Pick’s Theorem then states that:}$

$Area= i + \frac{b}{2}-1$

$i\ \text{stands for the number of points in the interior of the shape,}\\b\ \text{stands for the number of points on the boundary of the shape.}$

$\text{We have}\\\\i=8\ \text{and}\ b=4.\\\\\text{Substitute:}\\\\Area=8+\dfrac{4}{2}-1=8+2-1=9$

8 0

3 years ago

Read 2 more answers